<% @vote = CommentGrade.getVoteThisComment(@user.id,@comment.id) %>
<% if @vote > 0 then %>
	<%= image_tag("icon_thumb_up.gif", :title => "your vote") %>
<% else %>
	<% if @vote < 0 then %>
		<%= image_tag("icon_thumb_down.gif", :title => "your vote") %>
	<% end %>
<% end %>